The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 20, 1997
Filed:
Jan. 11, 1996
Applicant:
Inventors:
Qiming Zhong, Coquitlam, CA;
Arman Bonakdarpour, North Vancouver, CA;
Assignee:
Moli Energy (1990) Limited, , CA;
Primary Examiner:
Int. Cl.
CPC ...
H01M / ; H01M / ; C01G / ;
U.S. Cl.
CPC ...
429194 ; 429223 ; 429224 ; 423594 ; 423599 ;
Abstract
Insertion compounds having the formula Li.sub.x+y M.sub.z Mn.sub.2-y-z O.sub.4 wherein the crystal structure is spinel-like, M is a transition metal, 0.ltoreq.x<1, 0.ltoreq.y<0.33, and 0<z< about 1, can reversibly insert significant amounts of lithium at potentials greater than about 4.5 volts versus Li/Li.sup.+. In particular, M can be Ni or Cr. The reversible amount of lithium at such voltages can be greater for greater values of z. Such insertion compounds are suitable cathode materials for high voltage lithium batteries.